No Charge after a long time without use


I would like to ask help here because i have one of my friend that gave me a switch that been not used for a while then now its not charging anymore. (it’s his daugter switch and been divorced so dont have a lot of money …)

I first checked the battery, result 0v
The i just taught the problem was only that and replace it but the switch is now starting but still not charging

I checked few compenents that seems shorted but i’m not really sure if it’s normal or not.

Could i get some help?